AVIF to JPG Converter
Convert AVIF to JPG in your browser. AVIF files usually come from image CDNs, modern web build pipelines and some recent phones; JPG is the better fit for photographs that need to open anywhere. You get a standard JPEG at the quality you choose. Nothing is uploaded.
- Processed locally
- No upload, no wait
- No sign-up
- No watermark
Drop images here
or choose files · paste with Ctrl/⌘ V
AVIF expected · other image formats also work
How to use AVIF to JPG
- 1
Add your AVIF files: drop them here, choose them, or paste from the clipboard.
- 2
Pick the colour that replaces transparent areas, since JPG has none.
- 3
Click Convert. Each file is decoded and encoded in a background thread on this device.
- 4
Download the .jpg files one at a time or together as a ZIP.
Why use Aback Images for avif to jpg
Where the JPG goes next
JPG opens in every operating system, browser, phone, photo kiosk and image editor.
JPG next to AVIF
Both formats are lossy, so the size mostly follows the quality setting; at the default the JPG usually lands in the same range as the AVIF.
A second lossy pass
AVIF is lossy already, since it stores lossy or lossless AV1 intra-frame coding, so keep the quality at or above the default to avoid stacking a new layer of artefacts on the old one.
Processed on your device
Your images are decoded, edited and encoded inside this browser tab by Web Workers. Nothing is uploaded to a server.
AVIF vs JPG
What changes from AVIF to JPG
Encoding: the AVIF uses lossy or lossless AV1 intra-frame coding; JPG uses lossy DCT coding in 8×8 pixel blocks, with colour usually stored at half resolution, and the download is a standard JPEG at the quality you choose.
Bit depth: 8, 10 or 12 bits per channel in the AVIF; JPG allows 8 bits per channel, and the JPG written here has 8 bits per channel. 10 and 12-bit AVIFs, including HDR ones, are decoded to 8 bits per channel.
Colour: YUV 4:4:4 or 4:2:0 with BT.709, Display P3 or BT.2020 primaries, HDR curves possible in the AVIF; JPG supports YCbCr shown as RGB, greyscale, or CMYK from print software, written here as 8-bit sRGB.
Transparency: the AVIF stores it as an auxiliary AV1 image stored beside the colour image; the JPG has none, so transparent areas are filled with the colour you choose.
Animation: an AV1 image sequence under the 'avis' brand; the JPG holds one image, so only the first frame is converted.
Metadata: the AVIF can carry EXIF, XMP and ICC stored as HEIF items; JPG can carry EXIF (camera, date, GPS), XMP, IPTC and an ICC profile in APP segments, but nothing is copied across.
About AVIF
AVIF uses the AV1 video codec for still images. It is the most efficient widely supported format, often half the size of JPEG, with HDR, wide colour and transparency, but encoding is slow.
An AVIF is a HEIF file, the same ISO base media boxes as MP4, with the brand 'avif'. The picture is an AV1 key frame stored as an image item, and its size, colour and pixel layout are item properties.
AVIF files usually come from image CDNs, modern web build pipelines and some recent phones.
About JPG
JPEG is the universal photo format. It compresses by discarding fine detail the eye is least sensitive to, which makes photos small but blurs sharp edges and text if pushed too far.
A JPEG starts with the bytes FF D8 and is a run of marker segments: APP1 carries EXIF and often a thumbnail, APP2 an ICC profile, DQT the quantization tables that decide the quality, and SOS the compressed scan, which ends at FF D9.
When converting AVIF to JPG makes sense
JPG is the better choice for photographs that need to open anywhere, while AVIF suits maximum compression on modern websites.
JPG strengths: Opens everywhere: every browser, phone, camera, printer and app; Small files for photographs; Adjustable quality from tiny to near-lossless. Drawbacks to weigh: No transparency; Lossy: every re-save loses a little more; Blocky artifacts around text, logos and sharp lines.
Limitations
- Almost any other format needs more bytes than AVIF for the same picture, so expect the file to grow.
- HDR and wide-gamut AVIFs are mapped to standard sRGB on decode, so very bright highlights can look flatter than on an HDR screen.
- JPG has no transparency and no animation; it is the safest choice when a file must open on any device or upload form.
- Each time a JPG is edited and saved again it loses a little more detail, so keep your original for further editing.
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Frequently asked questions
Does converting AVIF to JPG lose quality?
JPG is lossy, so detail the eye barely notices is discarded to save space. The AVIF was lossy already, so keep the quality high to avoid stacking artefacts. 10 and 12-bit AVIFs, including HDR ones, are decoded to 8 bits per channel.
What happens to transparency when converting AVIF to JPG?
AVIF stores transparency as an auxiliary AV1 image stored beside the colour image. JPG has no alpha channel, so transparent pixels are composited onto a solid colour, white unless you pick another. To keep transparency, convert to PNG, WebP or AVIF instead.
Will my animated AVIF stay animated?
No. JPG holds a single image, so only the first frame is kept. Convert to animated WebP, APNG or GIF to keep the motion, or export every frame with the GIF Frame Extractor.
What quality should I choose for JPG?
85 to 92 looks identical to the original for most photos. 70 to 80 saves a lot more with little visible change. Below 60, blocking appears around edges and in skies.
Which apps open JPG files?
Every operating system, browser, phone, photo kiosk and image editor.
Are my images uploaded anywhere?
No. Processing happens inside your browser with WebAssembly and Web Workers. The site only downloads the app code and codecs; your files never leave your device. You can confirm this with the live upload counter on the tool, or in your browser's network panel.
Can I process many files at once?
Yes. Drop a whole selection or folder. Files are processed in parallel on several worker threads, each result can be downloaded on its own, and everything can be saved as one ZIP.
Is it free? Is there a file limit or watermark?
It is free with no account, no watermark and no daily limit. The only limit is your device's memory: very large images (over roughly 100 megapixels) may be refused to keep the tab from crashing.